Mercurial > hg > orthanc-wsi
annotate ViewerPlugin/RawTile.cpp @ 318:8ad12abde290
sparse re-encoding with OpenSlide (notably for MIRAX format)
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 11 Sep 2024 16:11:16 +0200 |
parents | 0683312e21ba |
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rev | line source |
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260 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
312
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium |
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
260 | 8 * |
9 * This program is free software: you can redistribute it and/or | |
10 * modify it under the terms of the GNU Affero General Public License | |
11 * as published by the Free Software Foundation, either version 3 of | |
12 * the License, or (at your option) any later version. | |
13 * | |
14 * This program is distributed in the hope that it will be useful, but | |
15 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 * Affero General Public License for more details. | |
18 * | |
19 * You should have received a copy of the GNU Affero General Public License | |
20 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
21 **/ | |
22 | |
23 | |
24 #include "../Framework/PrecompiledHeadersWSI.h" | |
25 #include "RawTile.h" | |
26 | |
27 #include "../Framework/ImageToolbox.h" | |
28 #include "../Framework/Jpeg2000Reader.h" | |
29 #include "../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h" | |
30 | |
31 #include <Compatibility.h> // For std::unique_ptr | |
318
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32 #include <Images/ImageProcessing.h> |
260 | 33 #include <Images/JpegReader.h> |
34 #include <Images/PngWriter.h> | |
35 #include <MultiThreading/Semaphore.h> | |
36 #include <OrthancException.h> | |
37 | |
38 | |
39 static std::unique_ptr<Orthanc::Semaphore> transcoderSemaphore_; | |
40 | |
261 | 41 namespace OrthancWSI |
260 | 42 { |
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43 static ImageCompression Convert(Orthanc::MimeType type) |
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44 { |
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45 switch (type) |
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46 { |
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47 case Orthanc::MimeType_Png: |
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48 return ImageCompression_Png; |
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49 |
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50 case Orthanc::MimeType_Jpeg: |
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51 return ImageCompression_Jpeg; |
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52 |
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53 case Orthanc::MimeType_Jpeg2000: |
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54 return ImageCompression_Jpeg2000; |
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55 |
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56 default: |
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57 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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58 } |
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59 } |
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60 |
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61 |
261 | 62 Orthanc::ImageAccessor* RawTile::DecodeInternal() |
260 | 63 { |
261 | 64 switch (compression_) |
260 | 65 { |
261 | 66 case ImageCompression_Jpeg: |
260 | 67 { |
261 | 68 std::unique_ptr<Orthanc::JpegReader> decoded(new Orthanc::JpegReader); |
69 decoded->ReadFromMemory(tile_); | |
70 return decoded.release(); | |
260 | 71 } |
72 | |
261 | 73 case ImageCompression_Jpeg2000: |
74 { | |
75 std::unique_ptr<Jpeg2000Reader> decoded(new Jpeg2000Reader); | |
76 decoded->ReadFromMemory(tile_); | |
260 | 77 |
261 | 78 if (photometric_ == Orthanc::PhotometricInterpretation_YBR_ICT) |
79 { | |
80 ImageToolbox::ConvertJpegYCbCrToRgb(*decoded); | |
81 } | |
82 | |
83 return decoded.release(); | |
260 | 84 } |
85 | |
261 | 86 case ImageCompression_None: |
87 { | |
88 unsigned int bpp = Orthanc::GetBytesPerPixel(format_); | |
89 if (bpp * tileWidth_ * tileHeight_ != tile_.size()) | |
90 { | |
91 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadFileFormat); | |
92 } | |
260 | 93 |
261 | 94 std::unique_ptr<Orthanc::ImageAccessor> decoded(new Orthanc::ImageAccessor); |
95 decoded->AssignReadOnly(format_, tileWidth_, tileHeight_, bpp * tileWidth_, tile_.c_str()); | |
96 | |
97 return decoded.release(); | |
98 } | |
99 | |
100 default: | |
101 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); | |
260 | 102 } |
103 } | |
104 | |
261 | 105 void RawTile::EncodeInternal(std::string& encoded, |
106 const Orthanc::ImageAccessor& decoded, | |
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107 Orthanc::MimeType encoding) |
260 | 108 { |
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109 ImageToolbox::EncodeTile(encoded, decoded, Convert(encoding), 90 /* only used for JPEG */); |
260 | 110 } |
111 | |
112 | |
261 | 113 RawTile::RawTile(ITiledPyramid& pyramid, |
114 unsigned int level, | |
115 unsigned int tileX, | |
116 unsigned int tileY) : | |
117 format_(pyramid.GetPixelFormat()), | |
118 tileWidth_(pyramid.GetTileWidth(level)), | |
119 tileHeight_(pyramid.GetTileHeight(level)), | |
120 photometric_(pyramid.GetPhotometricInterpretation()) | |
260 | 121 { |
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122 isEmpty_ = !pyramid.ReadRawTile(tile_, compression_, level, tileX, tileY); |
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123 } |
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124 |
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125 |
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126 ImageCompression RawTile::GetCompression() const |
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127 { |
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128 if (isEmpty_) |
261 | 129 { |
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130 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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131 } |
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132 else |
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133 { |
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134 return compression_; |
261 | 135 } |
260 | 136 } |
137 | |
138 | |
261 | 139 void RawTile::Answer(OrthancPluginRestOutput* output, |
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140 Orthanc::MimeType encoding) |
260 | 141 { |
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142 if (isEmpty_) |
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143 { |
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144 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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145 } |
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146 |
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147 if ((compression_ == ImageCompression_Jpeg && encoding == Orthanc::MimeType_Jpeg) || |
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148 (compression_ == ImageCompression_Jpeg2000 && encoding == Orthanc::MimeType_Jpeg2000)) |
261 | 149 { |
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150 // No transcoding is needed, the tile can be served as such |
261 | 151 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, tile_.c_str(), |
276
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152 tile_.size(), Orthanc::EnumerationToString(encoding)); |
261 | 153 } |
154 else | |
260 | 155 { |
261 | 156 std::string transcoded; |
157 | |
158 { | |
159 // The semaphore is used to throttle the number of simultaneous computations | |
160 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); | |
161 | |
162 std::unique_ptr<Orthanc::ImageAccessor> decoded(DecodeInternal()); | |
276
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163 EncodeInternal(transcoded, *decoded, encoding); |
261 | 164 } |
165 | |
166 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, transcoded.c_str(), | |
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167 transcoded.size(), Orthanc::EnumerationToString(encoding)); |
261 | 168 } |
169 } | |
170 | |
260 | 171 |
261 | 172 Orthanc::ImageAccessor* RawTile::Decode() |
173 { | |
318
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174 if (isEmpty_) |
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175 { |
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176 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); |
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177 } |
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178 |
261 | 179 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); |
180 return DecodeInternal(); | |
181 } | |
182 | |
260 | 183 |
261 | 184 void RawTile::Encode(std::string& encoded, |
185 const Orthanc::ImageAccessor& decoded, | |
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186 Orthanc::MimeType encoding) |
261 | 187 { |
188 Orthanc::Semaphore::Locker locker(*transcoderSemaphore_); | |
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189 EncodeInternal(encoded, decoded, encoding); |
261 | 190 } |
191 | |
192 | |
193 void RawTile::InitializeTranscoderSemaphore(unsigned int maxThreads) | |
194 { | |
195 transcoderSemaphore_.reset(new Orthanc::Semaphore(maxThreads)); | |
196 } | |
197 | |
198 | |
199 void RawTile::FinalizeTranscoderSemaphore() | |
200 { | |
201 transcoderSemaphore_.reset(NULL); | |
260 | 202 } |
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203 |
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204 |
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205 void RawTile::AnswerBackgroundTile(OrthancPluginRestOutput* output, |
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206 unsigned int tileWidth, |
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207 unsigned int tileHeight) |
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208 { |
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209 std::string answer; |
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210 |
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211 { |
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212 static boost::mutex mutex; |
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213 static std::string cachedTile; |
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214 static unsigned int cachedWidth = 0; |
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215 static unsigned int cachedHeight = 0; |
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216 |
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217 boost::mutex::scoped_lock lock(mutex); |
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218 |
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219 if (cachedTile.empty() || |
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220 cachedWidth != tileWidth || |
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221 cachedHeight != tileHeight) |
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222 { |
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223 Orthanc::Image tile(Orthanc::PixelFormat_RGBA32, tileWidth, tileHeight, false); |
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224 |
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225 Orthanc::ImageProcessing::Set(tile, 255 /* red */, 255 /* green */, |
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226 255 /* blue */, 0 /* alpha - fully transparent */); |
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227 |
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228 Orthanc::PngWriter writer; |
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229 Orthanc::IImageWriter::WriteToMemory(writer, cachedTile, tile); |
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230 cachedWidth = tileWidth; |
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231 cachedHeight = tileHeight; |
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232 } |
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233 |
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234 answer = cachedTile; // Make a private copy to avoid mutex on "OrthancPluginAnswerBuffer()" |
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235 } |
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236 |
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237 OrthancPluginAnswerBuffer(OrthancPlugins::GetGlobalContext(), output, answer.c_str(), |
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238 answer.size(), Orthanc::EnumerationToString(Orthanc::MimeType_Png)); |
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239 } |
260 | 240 } |